A. have read; knew B. would read; had known C. read; had known D. had read; knew 参考答案:D 答案解析:[考点] 时态 [解析] Not until 用否定句，“直到……，直到……才”，例：It was not until he told me that I knew it 因为是过去时，所以条件
第14题: [单项选择]The result of the experiment was not ______ to publish. A. interesting enough B. too interesting C. enough interesting D. so interesting 参考答案:A 答案解析:enough用来修饰形容词总是放在形容词的后面，因此可以否定选项C．enough interesting not+形容词+enough +to动词不定式，表示“不够……，不能……”，
如：He
